What is the relationship in which the ratio of the manipulated variable and the responding variable is constant?
a. inverse proportion
b. direct proportion
c. slope
d. interdependent

Evaluate the given expression if m=45 |-3m|

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?